And now, ESPN will air a race live, with sponsors ranging from the obvious (GoPro) to the less obvious (Ernst & Young, and AIG). It means drone racing could be a big business.

I took an in-depth look at the business of drone racing and wrote it up on MarketWatch.com. It includes interviews from drone racer Zoe Stumbaugh, chief executive of Drone Sports Association Sahand Barati, and more. Will drone racers make money? Will all these racing leagues survive? Check it out!